ABB i-bus
®
KNX
Parameters
FCC/S 1.X.X.1 | 2CDC 508 200 D0211 Rev A 296
7.12.1.1.6
—
Dependent Parameter
Manual fan adjustment via KNX with
This parameter is only displayed if you select
No
when setting
Connect analog room control unit to
physical device input a
.
Options:
DPT 5.001 (percentage value)
DPT 5.010 (meter pulses)
This parameter determines the datapoint type used to adjust the setpoint via group objects
Request fan speed adjustment
and
Confirm fan speed adjustment
.
•
DPT 5.001 (percentage value)
: Selecting this DPT sends the fan adjustment as a 0…100%
value. To adjust the fan speed, simply enter the new required value as a percentage.
•
DPT 5.010 (meter pulses)
: This is the only viable option if you are using legacy ABB devices
that do not yet support the latest version of the master/slave concept. It is the only way to en-
sure that the master and slave can communicate. This option sends the fan adjustment as a
proprietary value.
Note
DPT 5.001 fan adjustment will not work on legacy ABB devices that do not yet support the latest
version of the master/slave concept. For these devices, DPT 5.010 is the only option, which
means that other equipment (such as display systems) cannot read the setpoint adjustment.
However, they can read or display the current fan speed via the
Status Fan speed
group object.
You also have the option to adjust the fan speed at any time with the
Switch fan speed
group ob-
ject.
7.12.1.1.7
—
Dependent Parameter
Reset manual adjustment via KNX when base setpoint received
This parameter is only displayed if you select
No
when setting
Connect analog room control unit to
physical device input a
.
Options:
No
Yes
Selecting
Yes
when setting this parameter resets manual setpoint adjustment when a value is re-
ceived via the
Base setpoint
group object.
Selecting
No
adds the manual setpoint adjustment to the new setpoint when a value is received via
the
Base setpoint
group object.
Example:
Old base setpoint 21 °C + manual adjustment 1.5 °C = 22.5 °C. Group object receives a new
base setpoint of 18 °C + previous manual adjustment of 1.5 °C = 19.5 °C.